1) Safe reliable: it attaches the localization protector and uses safely reliable 2) Operates facilely: it uses the bearing combination. It can steady slide, attach and hang the mold installment independently 3) Save space: take up a little space but can be put scores of sets Medium moulds. 4) Simple structure: it's installed by many kinds of combination parts, so it's convenient for the disassembling, transportation and re-assembly. 5). Mark: non-standard specification is available.
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